For sale are two Z4M OEM front tyres. These have 5mm tread left (8mm when new) and have worn perfectly evenly. They are around £126 new and I'd sell the pair for £80.
Tyres can be sold as new up to 5 years from manufacture with recommend replacement between 7-10 years of use. There is definitely lots of life left in these tyres.
I’d second these being close to their age limit. You’re talking an average of 5 years since fitment, so that’s 2019.
Then you factor in the slimmer market because these are M sizes... if you’re driving a car like that you defo want everything in tip top condition. Just some food for thought